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Java > Open Source Codes > nextapp > echo2 > app > Style


1 /*
2  * This file is part of the Echo Web Application Framework (hereinafter "Echo").
3  * Copyright (C) 2002-2005 NextApp, Inc.
4  *
5  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
6  *
7  * The contents of this file are subject to the Mozilla Public License Version
8  * 1.1 (the "License"); you may not use this file except in compliance with
9  * the License. You may obtain a copy of the License at
10  * http://www.mozilla.org/MPL/
11  *
12  * Software distributed under the License is distributed on an "AS IS" basis,
13  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
14  * for the specific language governing rights and limitations under the
15  * License.
16  *
17  * Alternatively, the contents of this file may be used under the terms of
18  * either the GNU General Public License Version 2 or later (the "GPL"), or
19  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
20  * in which case the provisions of the GPL or the LGPL are applicable instead
21  * of those above. If you wish to allow use of your version of this file only
22  * under the terms of either the GPL or the LGPL, and not to allow others to
23  * use your version of this file under the terms of the MPL, indicate your
24  * decision by deleting the provisions above and replace them with the notice
25  * and other provisions required by the GPL or the LGPL. If you do not delete
26  * the provisions above, a recipient may use your version of this file under
27  * the terms of any one of the MPL, the GPL or the LGPL.
28  */
29
30 package nextapp.echo2.app;
31
32 import java.io.Serializable JavaDoc;
33 import java.util.Iterator JavaDoc;
34
35 /**
36  * A representation of stylistic property information about a single instance
37  * or type of component.
38  */
39 public interface Style
40 extends Serializable JavaDoc {
41     
42     /**
43      * Retrieves the value of the specified indexed property.
44      */
45     public Object JavaDoc getIndexedProperty(String JavaDoc propertyName, int index);
46     
47     /**
48      * Retrieves the value of the specified property.
49      */
50     public Object JavaDoc getProperty(String JavaDoc propertyName);
51     
52     /**
53      * Determines which indices of a particular property are set.
54      *
55      * @return an <code>Iterator</code> that returns the set indices in
56      * incrementing order as <code>Integer</code>s
57      */
58     public Iterator JavaDoc getPropertyIndices(String JavaDoc propertyName);
59     
60     /**
61      * Retrieves the names of all set properties.
62      *
63      * @return an <code>Iterator</code> that returns the names of all set
64      * properties
65      */
66     public Iterator JavaDoc getPropertyNames();
67     
68     /**
69      * Determines if a particular index of an indexed property is set.
70      *
71      * @param propertyName the property name
72      * @param index the index
73      * @return true if the index is set
74      */
75     public boolean isIndexedPropertySet(String JavaDoc propertyName, int index);
76     
77     /**
78      * Determines if a particular property is set.
79      * In the case of an indexed property, this method will return true
80      * if any indices are set.
81      *
82      * @param propertyName the property name
83      * @return true if the property is set
84      */
85     public boolean isPropertySet(String JavaDoc propertyName);
86 }
87
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